نتایج جستجو برای: biosphere reserves

تعداد نتایج: 16395  

جعفری, عیسی, نیک نهاد, حمید,

One of the methods to increase the incomes utilization of range is recreational use from rangelands, but these uses can have negative effect. So in this study, we were investigated the effect of recreational use from rangeland on carbon sequestration in Miankale biosphere reserves.  In order to, after preliminary identification, for sampling from ecotourism area and non-ecotourism area, tw...

Journal: :Ecosystems 2022

Abstract In the early 1990’s, reserves adjacent to Kruger National Park (KNP) removed their fences create a continuous landscape within Canyons Biosphere Reserve. Understanding how these interconnected multi-management systems responded changes in environmental factors and management regimes can help maintain natural large-scale heterogeneity ecological resilience. Our objective was analyze rem...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علامه طباطبایی - دانشکده اقتصاد 1391

reinsurance is widely recognized as an important instrument in the capital management of an insurance company as well as its risk management tool. this thesis is intended to determine premium rates for different types of reinsurance policies. also, given the fact that the reinsurance coverage of every company depends upon its reserves, so different types of reserves and the method of their calc...

2015
M. R. North G. P. Petropoulos J. P. McCalmont

Introduction Conclusions References

2013
Marine Elbakidze Thomas Hahn Volker Mauerhofer Per Angelstam Robert Axelsson

The Biosphere Reserve (BR) concept aims at encouraging sustainable development (SD) towards sustainability on the ground by promoting three core functions: conservation, development, and logistic support. Sweden and Ukraine exemplify the diverse governance contexts that BRs need to cope with. We assessed how the BR concept and its core functions are captured in national legislations. The result...

2013
M. Saito

Introduction Conclusions References

2014
Jesús Sotomayor-Bonilla Andrea Chaves Oscar Rico-Chávez Melinda K. Rostal Rafael Ojeda-Flores Mónica Salas-Rojas Álvaro Aguilar-Setien Sergio Ibáñez-Bernal Arturo Barbachano-Guerrero Gustavo Gutiérrez-Espeleta J. Leopoldo Aguilar-Faisal A. Alonso Aguirre Peter Daszak Gerardo Suzán

To identify the relationship between landscape use and dengue virus (DENV) occurrence in bats, we investigated the presence of DENV from anthropogenically changed and unaltered landscapes in two Biosphere Reserves: Calakmul (Campeche) and Montes Azules (Chiapas) in southern Mexico. Spleen samples of 146 bats, belonging to 16 species, were tested for four DENV serotypes with standard reverse tra...

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